KEYLESS-GO
General information
Vehicles with KEYLESS-GO are equipped with a SmartKey featuring an integrated KEYLESS-GO function and a detachable Start/Stop button.
The Start/Stop button must be inserted into the ignition lock and the SmartKey must be in the vehicle.
Pressing the Start/Stop button several times in succession corresponds to the different SmartKey positions in the ignition lock. This is only the case if you are not depressing the brake pedal.
If you depress the brake pedal and press the Start/Stop button, the engine starts immediately.
The Start/Stop button can be removed from the ignition lock. Then, you can insert the SmartKey into the ignition lock.
You do not have to remove the Start/Stop
button from the ignition lock when you
leave the vehicle. However, you should
always take the SmartKey with you when
leaving the vehicle. The vehicle can be
started with the Start/Stop button and the
electrical equipment can be operated while
the SmartKey is in the vehicle.

1 Start/Stop button
2 Ignition lock
Insert Start/Stop button 1 into ignition
lock 2.
When you insert Start/Stop button 1
into ignition lock 2, the system requires a
detection time of approximately two
seconds before you can use Start/Stop
button 1.

Start/Stop button
3 USA only
4 Canada only
Position 0: if Start/Stop button 1 has not
yet been pressed, this corresponds to the
SmartKey being removed from the ignition.
Position 1: press Start/Stop button 1.
You can now activate the windshield wipers, for example.
If you then open the driver's door when in
this position, the power supply is
deactivated.
Position 2 (ignition): press Start/Stop
button 1 twice.
If you press Start/Stop button 1 once
when in this position and the driver's door
is open, the power supply is deactivated
again.
As soon as the ignition is switched on, all the indicator lamps in the instrument cluster light up. If an indicator lamp does not go out after the engine is started or if it lights up while the vehicle is in motion.
See also:
Brow of hill
When driving up an uphill gradient, slightly
reduce pressure on the accelerator
immediately before reaching the brow of the
hill. Use the vehicle's own impetus to drive
over the top of the hil ...
General notes
The Driving Assistance package is only
available on vehicles with HYBRID.
The Driving Assistance package consists of
DISTRONIC PLUS, Blind Spot
Assist and Lane Keeping Assist. ...
Low outside temperatures
Do not use gasoline to refuel vehicles with
a diesel engine. Never mix diesel with
gasoline or kerosene, as this may result in
damage to the engine or fuel system.
Diesel fuel with improved co ...
